Do I have a weak chin and would surgery improve my side profile?

You can tell that both your maxilla and mandible (upper and lower jaws) are a little recessed/weak because of the overjet of your teeth. I'm guessing you had orthodontic work at some point to do that to try to get all your teeth in alignment instead of expanding the jaw. Nonetheless, there's nothing "wrong" with your profile but yes, you do have a weaker chin. You could think about surgery or filler for that.

You may have a bit of a recessive chin appearance, however, I do not find this to be distracting, and you appear to have a lovely jawline. If you are considering chin augmentation, please consider meeting with a reputable facial plastic surgeon who offers computer Imaging so you could understand what you would achieve after the surgery. Thank you for your question. Sincerely, Dr Joseph